Stool.



PATENTED MAY 29, 1906.

P. M. CONWAY.

STOOL.

APPLIGATION FILED Nov. 4, 1905.

Witnesses: Inventor,

l I a Attorneys.

www

` tonville, in the county of i --UITED STATES PATENT oEErcE. p

Speccation of Letters Patent.

`ratented. May 29, 1906.

Applicationiled November 4, 1905. Serial No. 285,910.

To @ZZ 'whom it may concern:

Beit known that I, FRANKIE M. CONWAY, a citizen of the United States,residing at Orof Minnesota,.have invente a new and useful Stool, ofwhich the following is a specification.

This invention relates generally to stools, andmore particularly to `eneadapted for use by bookkeepers.

The object of theinvention is'in a novel and practical manner to obviatethe necessity of a bookkeeper dismounting from his stool or seat inorder to examine a book located at some distance from'the point at whichhe is working, whereby the fatigue attending such procedure is obviatedand loss of time consequent thereto is prevented.

With the above and other objects in view, as will appear as the natureof the invention is better understood, the same consists in the novelconstruction and combination of parts of a bookkeepers stool, as willbehereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification,andin which like characters of reference indicate corresponding parts,Figure 1 is a view in perspective of a stool constructed in accordancewith the present invention. Fig. 2 is a view in transverse section.

Referring to the drawings, 1 designates a platform which is supported byfour le s 2, that are connected and rendered rigid by rungs or bars S-inthis instance four in number-two being disposed transversely of theplatform and two longitudinally thereof. In addition to strengtheningthe legs these rungs, more particularly the longitudinal ones, willserve as a foot-rest and will also enable the occupant of the chair orseat to lmove the same along the length of the platform,

thus to bring hlm' opposite a desired book.-

The essential features of the present invention reside in a novel formof ball-bearing track and anovel form of seat-support to engage thetrack.

The track 4 is constructed of any suitable metal and is approximatelyrectangular in lelevation, with rounded terminals. As shown in Fig. 1,the track is a continuous split tube,

the upper member of the track having the walls of its split spaced aparta sufficient distance to permit the balls 5 to be freely ex- Bi stoneand State the support will be positively held posed to view, but to .beheld against accidental removal from the track; As 'shown in Fig. 1, thewalls of the split at each end of the track approach each other, for apurpose that will presently appear.-

As shown in Fig. 1, the platform is c onstructed in two sections whichare held assembled by bolts or tie-,rods 6, this arrangement beingnecessary in order to permit the track to be assembled with theplatform. This is secured by providing the terminals of thev platformwith oriiices 7 and 8, through which the track projects, and when thetwo sections of the platform are assembled thetrack will positively beheld against movement or accidental separation from the plat. l

form. The opposed faces of the platformsectionsare cut away to form achannel'9`,

the functionof which will presently appear; j

'75" beenmade,comprisesaplate 10,havin alontrack and thereby serve toprevent the support from having any horizontal or twisting motionrelatively thereto. TheA support intermediate of its ends is providedwith two downward-extending arms 13, which extend around the up er trackmember and are secured interme( iate of their ends by a rivet-or bolt14, and thence extend downward and.

are fiared outward, as at 15, to embrace the lower member of the track,the clamlping members thus provided serving positive y to prevent anyrocking movement of the supi port upon tle-e upper track member. Thearms 13 and also the ears 12 may be integral with the seat-support, asshown, or be made as separate elements and secured thereto.

Projecting upward from the intermediate portion of the seat-support is ahollow stud or boss 16, which is ada ted to receive an ordinarypivot-pin carried) by a seat 17, which may be of the usualconstruction-abat is t0 say, an ordinary stool-top or it may be providedwith a back, as shown. In the use of the seat it will only be necessaryfor the operator to push on one of the rungs 3 to effect shifting of theseat-support alon the un .er track member andne g .LP 7 y the supportreaches the constricted portion of the split at each end of the saidtra'ck member against any further lateral movement, so that any dangerof tilting vof the seat will be positively prevented.

Having thus described the invention, what is claime is- 1. A seatcomprisin a platform, a ballbearing track supporte thereby and havingone member disposed above and the other below the platform, and aseat-support having a portion to engage with the balls of the uppermember, and with guides to engage the lower member.

2. A seat comprising a platform, a ballbearing track supported therebyand having one of its members disposed above and the other below theplatform, the balls in the upper member being exposed to view, and aseat-support having a portion' to engage the balls in the last-namedmember and provided with means to hold it against twisting movementrelatively thereto.

3. A vseat comprising a platform, a ballbearing track supported thereby,one member of which is disposed above and the other below the platform,the balls of the upper track member beinfy exposed to view, aseatsupport having a ownward-extending portion to engage the balls ofthe upper member and ears to hold the support against twisting movementrelatively-to the track, and arms carried by the support and havingmembers to engage the lower track member.

4. A seat comprising a platform, an approximately ellipticalball-bearing track supported thereby, the balls of the upper 'memberbeing exposed to view, and a seat-support having portions to engagerespectively with the balls of the upper member and with the lowermember.

FRANKIE M. CONWAY.

Witnesses:

R. W. GREEN, H. D. KENYON.

